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受欢迎的代数 >

4x^5+5x^2-3x=0

解答

4 x^{5} + 5 x^{2} - 3 x = 0

解答

x = 0, x \approx 0.53463 \dots, x \approx - 1.22977 \dots

求解步骤

4 x^{5} + 5 x^{2} - 3 x = 0

因式分解

4 x^{5} + 5 x^{2} - 3 x : x (4 x^{4} + 5 x - 3)

x (4 x^{4} + 5 x - 3) = 0

使用零因数法则： If

ab = 0

then

a = 0

or

b = 0

x = 0 or 4 x^{4} + 5 x - 3 = 0

解

4 x^{4} + 5 x - 3 = 0 : x \approx 0.53463 \dots, x \approx - 1.22977 \dots

解为

x = 0, x \approx 0.53463 \dots, x \approx - 1.22977 \dots

作图

流行的例子

16 x^{4} + 8 x^{2} - 3 = 0

x^3-3x^2+3x-6=0

x^{3} - 3 x^{2} + 3 x - 6 = 0

x (x^{2} - 5 x + 14) = 0

x^3-3x^2-2x-8=0

x^{3} - 3 x^{2} - 2 x - 8 = 0

10=0.2x^3+0.1x^5

10 = 0.2 x^{3} + 0.1 x^{5}